Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
ban hanh » ban hang
mai hoi » dai hoi, lai hoi, mai doi
ve cham » ve chat, vu cham, ve chim
va cham » va chat, va tham
cuc ban » cua ban, cac ban, cuu ban
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ((mai hoi) OR (mai khoi)). hieu ((ve cham) or (va cham)) cuc ban hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((mai hoi) OR (mai khoi)). hieu ((ve cham) OR (va cham)) cuc ban hanh vi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ((mai hoi) OR (mai khoi)). hieu ((ve cham) or (va cham)) cuc ban hanh vi cuu tre*".